2019年高三二轮复习--完形填空的解题技巧及训练+情态动词的复习.pdf
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1、20192019 年高三二轮复习年高三二轮复习-完形填空的解题技巧及训练完形填空的解题技巧及训练+情态动词的复习情态动词的复习一一.课程介绍课程介绍知识点知识点 1.归纳讲解完形填空的解题技巧(4)-议论文2.重点语法:情态动词的复习教学重点教学重点 1.掌握并运用好议论文体完形填空的解题技巧2.准确辨析及正确使用情态动词教学难点教学难点完形填空中高频词语的掌握二二.要点回顾要点回顾I.I.填空填空1._(catch)the early flight,we ordered a taxi in advance and got up very early.2.The teacher came in
2、to the lab,_(follow)by some students.3.Much time _(spend)sitting at a desk,office workers are generally troubled by healthproblems.4._(absorb)in painting,John didnt notice evening approaching.5._(work)for two days,Steve managed to finish his report on schedule.【答案】【答案】1.To catch【解析】【解析】不定式做目的状语【答案】【
3、答案】2.followed【解析】【解析】过去分词做伴随状语【答案】【答案】3.spent【解析】【解析】考查分词的独立主格结构。spend 的逻辑主语是 time,二者是被动的关系,所以用过去分词,表示被动【答案】【答案】4.Absorbed【解析】【解析】考查非谓语动词作状语。absorb 使用过程中的固定搭配是be absorbed in,John 和be 之间是主动关系,所以应该是Being absorbed in的形式,但是在平时的使用中being 经常被省略掉【答案】【答案】5.Having worked【解析】【解析】考查非谓语动词作状语。主句主语 Steve 和 work 是主
4、动关系,而且工作持续时间是两天,所以选择现在分词的完成时形式II.II.完形填空完形填空The findings come from a study of nearly 1,000 US people that looked at diet,calorie intakeand body mass index(BMI)a measure of obesity._1_ is found that those who ate chocolate afew times a week were,on _2_,slimmer than those _3_ ate it occasionally.Even
5、_4_chocolate is loaded with calories,it contains ingredients(成分)that may favour weigh t loss _5_than fat synthesis,scientists believe._6_ boost ing calorie intake,regular chocolate consumptionwas related to lower BMI in the study,_7_ is published inArchives of Internal Medicine.Thelink remained even
6、 when other factors,like how _8_ exercise individuals did,were taken into_9_.And it appears it is how often you eat chocolate that is important,rather than how much ofit you eat.The _10_ found no link with quantity consumed._11_ to the researchers,there is only one chance in a hundred that their fin
7、dings could beexplained by chance alone.Lead author Dr Beatrice Golomb,from the University of California atSan Diego,said:“Our findings appear to add to a body of information suggesting that thecomposition of calories,not just the number of them,matters for determining their ultimate impacton weight
8、.”This is not the first time scientists _ 12_ that chocolate may be healthy for us.Otherstudies have claimed chocolate may be good for the heart.Consumption of certain types ofchocolate has been linked to some favourable changes in blood pressure,insulin(胰岛素)sensitivity and cholesterol(胆固醇)level.And
9、 chocolate,_13_ dark chocolate,does containantioxidants(抗氧化剂)which can help to mop up harmful free radicals unstable chemicals thatcan damage our cells.Dr Golomb and her team believe that antioxidant compounds,called catechins(儿茶素),canimprove lean muscle mass and reduce weight _14_ studies in rodent
10、s would suggest thismight be so.Mice _15_ for 15 days with epicatechin(present in dark chocolate)had improvedexercise performance and observable changes to their muscle composition.They say clinical trialsare now needed in humans to see _16_ this is the case.But before you reach _17_ a chocolate bar
11、,there are still lots of unanswered questions.And in the absence of conclusive evidence,experts advise caution.While theres no harm inallowing yourself a treat like _18_ now and again,eating too much might be harmful because itoften _19_ a lot of sugar and fat too.And if you are looking to change yo
12、ur diet,you are _20_to benefit most from eating more fresh fruits and vegetables.1A.AsBItCWhichDWhat2A.wholeBaverageCgeneralDshort3A.whoBthatCwhichDwhy4A.thoughBsoCbutDor5A.otherBratherClessDmore6A.ThoughBEven ifCWhenDDespite7A.thatBwhichCwhereDwhen8A.muchBoftenClongDmany9A.thoughtBmindCaccountDeffe
13、ct10A.newsBreportCstudyDbook11A.AccordingBBasedCReplyDResponse12A.had suggestedBsuggestedChave suggestedDsuggest13A.speciallyBparticularlyCluckilyDunfortunately14A.at leastBat mostCin factDby accident15A.feedingBfedCto feedDfeed16A.ifBwhatCwhyDthat17A.outBforCwithDinto18A.noodlesBchocolateCriceDnuts
14、19A.includesBtakesCabsorbsDcontains20A.probableBpossibleClikelyDabout【答案】文章讲述的是一项研究发现经常摄入巧克力有助于提高人们的身体素质。1-5.BBAAB6-10.DBACC11-15.ACBAB16-20.ABBDC三三.知识精要知识精要1.1.议论文体的完形填空的解题思路议论文体的完形填空的解题思路议论文型完形填空一般是直接提出论点,通过论据论证,最后作者提出自己的看法或提出另一个话题供大家讨论。解答这类题要遵循下列原则:1.对于纯议论文型的完形填空,在把握全文主旨的情况下,抓住每段的首句是非常重要的。有一项调查结果
15、表明:英语中有 60%-90%的议论文的主旨是文章的首句,抓住了文章的主旨也就“牵住了牛鼻子”,在理解文章也就不难了。2.理清文章的论点,论据和结论。与记叙文型完形填空相比,议论文型完形填空更难做一些。一般的记叙文是按时间顺序进行描述的,我们只要把握事件的发生,发展过程就能将情景把握好。然而,议论文型完形填空就没有那么简单了。如果我们对论点.论据.结论都把握不清,只能莽撞地选择答案。一般来说,能说明论点的主要内容的答案可以在论据中得到印证,形成相辅相成的关系,从而使整篇文章的内容上下一致。如果我们所选的答案前后矛盾,论点和论据相悖,最后的结论和论点相矛盾,那就说明我们对文章的把握还欠调理性和系
16、统性,这时我们需要重新来理顺文章的各部分,直到条理清晰为止,然后再依据自己对文章的各部分的逻辑关系选出答案。2.2.语法语法情态动词情态动词1、情态动词的基本用法(1)can.be able to 和 couldcan 和 be able to 都表示能力,意思上没多大区别。但 can 只有现在和过去时,而 be ableto 则有更多的形式。但当成功地完成某一具体动作时,通常不用 could而用 was/were ableto 来表示。这时 was/were able to 相当于 managed to,表示经过一番努力,终于能够完成某事。can 和 couldcan 和 could 都可以
17、表示能力.技能.许可.建议或请求和可能性。但比较委婉客气地提出问题或陈述看法,一般用could,回答时则用 can。(2)may/mightmay/might 表示可能,但 may 比 might 可能性大。may/might 表示“允许”,may 用于现在时或将来时,might 常用在间接引语中表过去时,但 might 也可用于现在时间,表示比较委婉的语气,回答用may。may/might 表示建议或请求,但 might 比 may 更客气,意思更肯定而无过去时态的含义。(3)mustmust 表示必须,应该,没有时态变化。must 表示肯定的推测。mustnt 表示禁止做某事。也可表示“偏
18、要,非要”(4)have tohave to 表示“必须.不得不”,是由于某种外界(客观)原因而“必须”,“不得不”做某事,也可表示经常的或习惯性的事“必须”做。have to 的否定形式表示不必。have to 可用于多种时态中。(5)should/ought toshould 和 ought to 表示应当.应该,前者比后者语气轻。should/ought to work hard.should/ought to 的否定形式表示禁止之意。should 可表示陈述意见,推出建议或请求;而ought to 可以表示劝告之意。(6)will/wouldwill 用于各种人称表示“意志”.“意愿”
19、或“决心”等,否定式 wont+动词。如:will 用于疑问句中,常用在第二称时表示说话人向对方提出“请求”或“询问”如:will 表示习惯性的动作,有“总是”.“惯于”的含义。如:would 表示客气的请求.建议或意愿。如:would 表示过去反复发生的动作。(常用于完形填空中).(7)needneed 作“必要”讲,既可作情态动词,也可作实义动词。作实义动词时后面的动词不定式要带 to,其变化与一般动词相同。(8)daredare 表示“敢”的意思。作为情态动词时,主要用在疑问句和否定句中。dare 若作实义动词,后面可带 to 的不定式,此时 to 也可以省略。dare 与 need 的
20、用法相似。(9)used toused to 表示过去常常发生的动作或存在的习惯,但现在已不复存在了。(10)shallshall 作为情态动词用于第二.三人称,表示说话人的意愿,有“命令”.“警告.威胁.强制”和“允许”等意思。在疑问句中,shall 用于征求对方的意见或请求指示,常用于第一.第三人称。2.情态动词表示推测或判断的用法下表即是表示推测的情态动词使用的场合:例如:It must have rained last night.情态动词must对现在和未来的推测must+动词原形对过去的推测must have doneMay/might have doneCan/could hav
21、e done使 用 场 合肯定句肯定句.否定句否定句.疑问名(couldcan/couldcan/could do用来表示一种估计的情况“按理会/估计会”should do/be可用于肯定句)肯定句.否定句.疑问句may/mightmay/might+动词原形shouldshould have doneShe may not be at home.=It is possible that she is not at home.She cant be at home.=It is impossible that she is at home.They should be there rightn
22、ow.3.情态动词在虚拟语气中的用法情态动词用于虚拟语气中表示责备的感情色彩,用法如下:(1)should have done 表示“本来应该做某事而实际上未做”,而 shouldnt have done 则表示“本不应该做某事而实际上做了”。如:You should have told me about it earlier.You shouldnt have said such words to your parents.(2)ought to have done 也表示“本应该”而 ought not to have done 则意为“本不应该”。如:You ought to have
23、told me about it earlier.You ought not to have said such words to yourparents.(3)neednt have done表示“本无必要做某事而实际上做了”。如:You neednt have walked so quickly since time was enough.(4)could have done 表示“本来有可能而事实上未做到”。如:I could have come on time,but my car broke on the way.四四.要点讲练要点讲练【要点【要点 1 1】议论文的完形填空:】议论文
24、的完形填空:【例题例题 1 1】(2015 安徽卷)In our modern world,when something wears out,we throw it away and buy a new one.The36 is that countries around the world have growing mountains of 37 because people are throwingout more rubbish than ever before.How did we 38 a throwaway society?First of all,it is now easier
25、 to 39 an object than tospend time and money to repair it.40 modern manufacturing(制造业)and technology,companiesare able to produce products quickly and inexpensively.Products are plentiful and 41.Another cause is our42 of disposable(一次性的)products.As 43 people,we are alwayslooking for 44 to save time
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